fiberglass questions

[3100 MPFI]

Working on a new project. In the past, I was fiberglassing from fiberglass to fiberglass, or fiberglass to plastic.

In this new project, I need to fiberglass to METAL.

I kinda need some pointers.

What is the best way to attach the fiberglass part to a metal panel, and then the best way to fiberglass it all in so it is smooth, and does not have a raised lip.

thanks